text: define(function (require) {
  
      var echarts = require('../echarts');
      var zrUtil = require('zrender/core/util');
  
      require('./graph/GraphSeries');
      require('./graph/GraphView');
  
      require('./graph/roamAction');
  
      echarts.registerProcessor('filter', require('./graph/categoryFilter'));
  
      echarts.registerVisualCoding('chart', zrUtil.curry(
          require('../visual/symbol'), 'graph', 'circle', null
      ));
      echarts.registerVisualCoding('chart', require('./graph/categoryVisual'));
      echarts.registerVisualCoding('chart', require('./graph/edgeVisual'));
  
      echarts.registerLayout(require('./graph/simpleLayout'));
      echarts.registerLayout(require('./graph/circularLayout'));
      echarts.registerLayout(require('./graph/forceLayout'));
  
      // Graph view coordinate system
      echarts.registerCoordinateSystem('graphView', {
          create: require('./graph/createView')
      });
  });